Refrigerating show case



June 17, 1930. A. A. HOPPENRATH REFRIGERATING SHOW CASE Filed Feb. 27.1928 v I n ven for;

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Patented June 17, 1930 UNITED s'm'ras ALBERT A. HOPPENRATH OFMINNEAPOLIS, MINNESOTA REFRIGERATING SHOW CASE Application filedFebruary 27, 1928.

My invention relates to refrigerating showcases and particularly to showcases intended for receiving food products. An object of the inventionis to provide a device of this character having a casing provided with ashelf which divides the interior of the casing into upper and lowercompartments in combination with a refrigerant receiver so constructedand arranged that currents of cold air will be caused to pass directlytherefrom into both the lower and upper compartments.

The full objects and advantages of my invention will appear inconnection with the detailed description thereof and the novel featuresof my inventive idea will be particularly pointed out in the claim.

In the accompanying drawings which illustrate the operation of myinvention,-

Fig. 1 is a view of the device in cross section. Fig. 2 is a view insection on the line 22 of Fig. 1.

The walls of the show case designated in general by the numeral 10 areof wood and these walls as well as a lid 12 for a refrigerantcompartment and doors 14 for the lower compartment are lined with heatinsulating material 16 such as cork. The top portion of the casing isdoubly inclined as is customary and is provided at the front with sightwindows 18 and at the rear with sliding glass doors 20 which give accessto the upper c0m-' partment 22. The doors 14 give access to the lowercompartment indicated at 24. Transverse strips 26 located about midwaybetween I the top and bottom of the casing serve to support slats 28which constitute an openwork bottom for the refrigerant receiver. A drippan or trough 30 is supported below the slats 28 in spaced relationthereto. Inclined strips 32 and 34 serve to direct the drip into the panor trough 30. The strip 32 is so positioned that a restricted passage Pis provided between its lower end and the inner wall of the pan 30. Theinner wall of the refrigerant receiver is produced by a longitudinalboard Serial No. 257,245.

36 which stops short of the upper end of the refrigerant compartment soas to leave a passage P of considerable width. An in clined board38extends between the bottom of the board 36 and the bottom of alongitudinal strip 40, the latter being spaced inwardly from the frontwall of the casing so as to leave a passageway P. Insulating material 42such as cork is placed above the board 38. Upon the upper surface of thematerial 42 there is a piece of white opalite 44 which together with thematerial 42 constitutes an in-1 clined shelf for the upper compartment.

The operation and advantages of my invention will now be obvious. Coldair from the ice compartment orrefrigerant receiver tends to flowdownwardly and circulate in the direction of the arrows A, but therestricted passageway P is not large enough to carry all of the cold airso that some of it passes in the direction of the arrows A through thepassages P P and accumulates in the lower food compartment 24. Thecurrent of cold air indicated by the arrows A passes directly over theinclined shelf 44 which constitutes a place for receiving food materialin the lower portion of the upper or display compartment 22. The resultis that the food material on this shelf as well as the food material inthe lower compartment 24 will be kept at a very low temperature.

I claim:

A refrigerating show case comprising a casing, a shelf in said casingdividing the interior thereof into upper and lower compartments, thefront edge of said shelf being spaced from the front wall of said casingto provide a passageway between said upper and lower compartments, arefrigerant receiving chamber, an openwork bottom for said chamber whichis substantially in horizontal alinement With the rear of said shelf,and a drip pan supported toward the top of said lowercompartment at suchdistance below said openwork bottom as to provide a restrictedpassageway between the bottom of said refrigerant chamber and the top ofsaid lower compartment, the inner wall of said refrigerant chamberstopping short of the top of the casing to provide a comparatively largepassageway whereby a portion of the cold air from said refrigerantchamber passes therethrough into said upper chamber while the remainderof the cold air from said refrigerant chamber passes through saidrestricted passageway into said lower compartment.

In testimony'whereof I hereunto afiix: my signature.

ALBERT A. HOP'PENRATH.

